Examples

Resource gathering is undertaken by a disassembler unit, which trundles around absorbing wreckage, old buildings or some enemy structures and transferring the energy back to the carrier, where it can be used to build new vehicles.

A group of pre-pubescent children are playing hunt-and-seek with their big-eyed pet companions, brandishing makeshift spears and automatic rifles -- there's no danger here, for bodies are fungible, rebuilt in a minute by the assembler/disassembler gates in every room.